以上两个轴扭矩图正负不同，说明内力和什么有关？https://p.ananas.chaoxing.com/star3/origin/668b5b64803cb222b7e4e23bffac467d.pnghttps://p.ananas.chaoxing.com/star3/origin/a9df6ffc24dd2fb3a4e325ed2595c693.png
举一反三
- 错误1： 错误2： 错误3： 错误4：https://p.ananas.chaoxing.com/star3/origin/f3848a1490dc70b67502f23cb8a243a3.jpg
- 错误1： 错误2： 错误3： 错误4：https://p.ananas.chaoxing.com/star3/origin/da50b19fe94e35c6326124e9d69be679.jpg
- https://p.ananas.chaoxing.com/star3/origin/b31898e8d988e836116efe3cba9a910f.pnghttps://p.ananas.chaoxing.com/star3/origin/fb8dc50d75c1b761d9389a77bc20b4fd.pnghttps://p.ananas.chaoxing.com/star3/origin/7e75cd17522334f54b2eaedb009dba9a.png
- 以下说法正确的是 https://p.ananas.chaoxing.com/star3/origin/32620d45b840963fcfd2a9e499329436.png https://p.ananas.chaoxing.com/star3/origin/be2489a6491756903a1a67528363e754.png https://p.ananas.chaoxing.com/star3/origin/c5d98544629d58d5c134ed8bc9743922.png https://p.ananas.chaoxing.com/star3/origin/eef7c4f0c58f9f292270fbd5e9600bd3.png
- 若矢量,,则和分别为https://p.ananas.chaoxing.com/star3/origin/29a7ebef5a1f13fa196720c17ea11824.pnghttps://p.ananas.chaoxing.com/star3/origin/72b68da8b99b640dfa73c4c8afe663c4.pnghttps://p.ananas.chaoxing.com/star3/origin/2b1a659b8f2529dbcd6ff5466e61191b.pnghttps://p.ananas.chaoxing.com/star3/origin/dfb7c75513635b5ceeb5343166baad3e.png